Author Heiseiowari has revealed on their Twitter account that the Tensei Shitara Saikyou Shu-tachi ga Sumau Shima Deshita. Kono Shima de Slow Life o Tanoshimimasu (The Isle of Paramounts: Reborn Into a Slow Life Among the Strongest in the World/転生したら最強種たちが住まう島でした。この島でスローライフを楽しみます) light novel series will end with the release of the 10th novel. The 10th novel is scheduled for release on March 6th, 2026.
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Square Enix released Heiseiowari’s first novel with illustrations by Noy in January 2022 and the ninth novel in September 2025.
J-Novel Club releases the novel series in English under the name The Isle of Paramounts: Reborn Into a Slow Life Among the Strongest in the World, and it will release the second novel digitally on February 11th, 2026. J-Novel Club describes the story below:
“Arata Toudou is just your average overworked corporate drone stuck in a monotonous grind—or at least he was, until a god’s careless mistake leads to his untimely demise. Life after death isn’t all that bad, though. As an apology, the god reincarnates him on a remote island in another world, complete with two overpowered cheats: a body immune to injury and illness, and a skill that lets him copy the spells and abilities of anyone he meets.
At long last, Arata can finally live out his dream of a quiet, solitary life in the great outdoors. But blissful solitude isn’t what greets him. It turns out the not-so-deserted island is home to the world’s strongest legendary beings. One thing’s certain: With the charming castaway and master magician Reina here to help, Arata’s new life promises unexpected companions and delicious feasts galore!”
The novel series was adapted into a manga by Yamaura Shu in June 2022 on Square Enix’s Gangan Online, and Square Enix released the manga’s first tankoubon volume in November 2021. The manga’s ninth volume was released on January 9th, 2026.
The manga chapters are released in English on Manga UP! Global website under the name Living a Laid-Back Second Life on the Island of the Strongest Species. Manga UP! Global describes the manga below:
“Arata’s wish for a strong body that doesn’t get sick or hurt was granted when he was reincarnated on what he thought was an uninhabited island. While there aren’t humans living there, the island is full of Divine Beasts, Ancient Dragons, Vampires, and Monsters! Arata thought he was in a desperate situation right from the get-go, but apparently his strong body that doesn’t get sick or hurt is just too strong?!”
